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Preliminary results are presented from the first validation of geophysical data products (ice concentration, snow thickness on sea ice (hs) and ice temperature (TI ) from the NASA EOS Aqua AMSRE sensor, in East Antarctica (in September–October 2003).
Measurements of the microwave backscatter coefficient in the ku-band have been obtained over the Antarctic snow cover by the NSCAT wind scatterometer instrument on the ADEOS satellite from August 1996 to June 1997. The instrument has six antennas arranged with two directed forwards…
Measurements of the microwave backscatter from the Antarctic ice sheet have been obtained by the single-sided, right-looking, C-band wind scatterometer carried by the ERS-1 and 2 satellites and by the dual-sided, ku-band NSCAT instrument on ADEOS.
Microwave backscatter from the Antarctic snow cover depends on the surface roughness, properties and structure within the snow cover, and moisture content. Small increases in moisture content produce a significant reduction in backscatter.
The 500 km wide swath of the right-looking ERS wind scatterometer and the orbital geometry allows measurement of the microwave backscatter of all the Antarctic region north of latitude 79°S.
Although satellite passive-microwave remote sensing is the main source of global sea-ice … information, the data products have never been adequately validated for East Antarctic … conditions.
The current shape and rate of change of the margins of the Antarctic ice sheet are … poorly known. Since polar regions are inhospitable, remotely sensed images … provide an invaluable data source for studying the ice margin.
The Lambert Glacier–Amery Ice Shelf system is a major component of the East Antarctic ice sheet. This paper presents two Digital Elevation Models (DEMs) that have been generated for the Lambert Glacier - Amery Ice Shelf system from validated ERS-1 satellite radar altimeter waveform data.
We use displacements derived from matching complex synthetic aperture radar data using maximum coherence to generate a dense network of velocity estimates over the … Amery Ice Shelf.
A survey of icebergs using satellite radar images has been made in the Seasonal Sea Ice Zone (SSIZ) of East Antarctica in the sector between longitudes 50°E and 145°E.
In the spring of 1995 an extensive global positioning system (GPS) survey was carried out on the Amery Ice Shelf, East Antarctica, providing ground-truth ellipsoidal height measurements for the European remote-sensing satellite (ERS) radar altimeters.
A Global Positioning System (GPS) survey has been carried out on the Amery Ice Shelf, providing "ground-truth" measurements of ellipsoidal height for the ERS-1 and ERS-2 satellite altimeters.
The 500 km wide swath of the ERS Wind scatterometer and its orbit geometry allows the measurement of the microwave backscatter of all the Antarctic region between latitudes 55°S and 79°S every three days.
There is a distinct directional anisotropy in microwave backscatter from the surface of the East Antarctic ice sheet as measured by the C-band wind scatterometer carried by the ERS-1 satellite.
The ERS-1 wind scatterometer is an active microwave instrument operating at 5.3 GHz in the C-band with VV-polarisation. Measurements of the microwave backscatter coefficient of the surface are made at regularly spaced points within a 500 km wide swath along each orbit.